Overview
The Belimo 22DT-52L is an active temperature sensor equipped with a 4-inch stainless steel probe for duct and immersion applications. It offers jumper-selectable measuring ranges and voltage outputs for versatile integration into HVAC systems.
Features
- 4-inch stainless steel probe for medium-depth ducts or pipe immersion
- 8 onboard jumper-selectable measuring ranges (S0–S7)
- Selectable 0…5 V or 0…10 V analog output signal
- Durable NEMA 4X / IP65 rated weatherproof housing
- Includes mounting clip for simple duct installation
Specifications
- Probe Length: 4 inches [100 mm]
- Probe Diameter: 0.24 inches [6 mm]
- Output Signal: 0…5 V, 0…10 V (selectable)
- Supply Voltage: 24 V AC/DC
- Enclosure Rating: NEMA 4X / IP65
- Measured Value: Temperature
Applications
- Supply and return air temperature sensing in HVAC ducts
- Pipe fluid temperature measurement with optional thermowell
- Commercial building automation temperature feedback loops


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